40 Years of
Innovation.

Celebrating 40 Years of
Industry Leading Completion & Stimulation Testing and
Research Services.

Since its inception in 1985, Stim-Lab has sat on API and ISO committees to guide the standards used today by other third-party laboratories as well as internal client laboratories.

Stim-Lab pioneered frac sand testing and continues innovating today through newly developed methodologies, member driven consortium studies, and regularly sharing technical knowledge with the industry.


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1985 – founded by Glen Penny and Mike Conway, Stim-Lab becomes the first independent, third-party laboratory testing and evaluating proppant.
1986 – Stim-Lab Consortium’s first year, making it the longest continually running consortium in the oil and gas industry.
1990 – Patent Issued: Cell Assembly for Determining Conductivity and Permeability.
1990 – Patent Issued: Integratable Circuit Arrangement for Delaying Pulse-Shaped Signals.
1993 – The first version of Predict-K, a hydraulic fracturing modeling software, is introduced.
1998 – Stim-Lab is acquired by Core Laboratories.
2009 – Patent Issued: Apparatus and Method for Measuring Crush-Resistance of Granular Materials.
2023 – Stim-Lab relocates to join Core Lab’s Advanced Technology Center in Houston, TX.

40

Years optimizing recovery from hydraulically fractured oil & gas wells

39

Years as the longest continually running consortium in the oil and gas industry

40+

Technical papers contributed to the oil and gas community

3

Innovative patents to drive the industry forward

And Counting…

As we celebrate 40 years of innovation and excellence, our commitment to advancing the oil and gas industry remains. Through member-driven research and continually evolving testing methods, we are dedicated to shaping the future of energy. Together with industry partners, we will continue driving technical contributions and exploring new advancements to meet the challenges of tomorrow.

A new, proprietary approach to proppant crush testing that leverages a modified Kozeny-Carman equation to estimate permeability directly from crush testing, offering engineers a more practical and predictive tool for proppant selection.

Comprised of operators, service companies, proppant suppliers, chemical suppliers, and universities, this member-driven research describes and predicts the behavior of proppants under realistic downhole conditions. Consortium findings allow members to compare proppants, predict expected well productivity, and make economic decisions. The next consortium meeting will take place in July, 2025. If you are not part of a member organization and are interested in attending, let us know here.

Celebrating 40 Years of Innovation at Stim-Lab

For four decades, Stim-Lab has been a trusted partner in optimizing well performance through advanced testing and analysis. Discover how our expertise can drive your success.